Zygon, the evil overlord of planet Trinia, forces his slaves to mine crystals day in and day out. One day, a young miner named Orin finds a jeweled sword in the rocks and embarks on a mission to restore peace and civility to his planet. Along the way he meets smugglers, robots and a princess who team with Orin to battle Zygon. Released more than 30 years ago, this sci-fi adventure is one of the first full-length animated features made in the 3-D format.